Wire-cloth.



I. .C. CAMPBELL.

WIRE CLOTH.

APPLICATION FILED MAY 31. 19x1.

Patentad Dec. 24, 1918.

A.....||||||lll UNTTD -ae m JOHN C. CAMPBELL, 0F NEWARK NEW JERSEY, ASSIGNOR T0 NEWARK WIRE CLOTH FEE.

COMPANY, GE NEWARK, ,NEW JERSEY, A CORPORATION OF NEW JERSEY.

wmn-cnorn.

Patented Dec; 24, 1918.

Application filed May 31, 1917. Serial No. 171,939.

To all whom it may concern Be it known that 1, JOHN C. CAMPBELL, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in a and do hereby declare the following specification, taken in connection with the drawings forming part of same, to be a full, clear, concise, and exact description of the invention and the best mode contemplated to apply the principle thereof, so as to distinguish it from other inventions and to enable any person skilled in the art to which it appertains or with which it is most nearly connected to make, construct, and use the same.

This invention relates primarily to a metallic fabric or wire cloth and more particularly to a cloth which is especially adapted as a filter medium. I

Wire filtering cloth has heretofore been made wherein the warpand weft wires were composed of twisted bundles of wires. After weaving, the cloth was rolled to flatten the bundles of wires. This method produced a;

non-uniform cloth.

This invention contemplates a metallic fabric consisting of a single wire for the war and a single wire for the weft, the clotii being produced by a single process of weaving which results in a very uniform filter medium having substantially rectangular openings evenly spaced.

Other objects will be apparent from, and are incorporated in the annexed drawings, and in the following description, which sets forth in detail certaln constructions embodying means, constituting, however, but one of the various mechanical forms in which the principle of this invention may be used.

The novelty of this invention will be readily understood from the drawings, which show a construction for practising the invention in its preferred form, and from the 'followin description thereof, and is more specifically pointed out and distinctly claimed in the claims annexed to said deportion of the fabric.

Wire-Cloth,

Fig. 2 is a plan view depicting the relation between the warp wires and two of the weft wlres.

Fig. 3 is a view similar to Fig. 2, but showing three Weft wires.

Fig. et is also a plan view and illustrates four weft wires.

Fig. 5 is a plan view of a portion of the fabric and represents the recurring series of weft wires.

Fig. 6 is a sectional view at XX, of Fig. 1, plainly exhibiting the straight warp wires.

The drawings depict a-wire fabric magnified many times. The wires used for filter cloth are generally only a few thousandths of an inch in diameter.

A cloth produced in accordance with this invention may be adapted to any kind of filtering by selecting the warp and weft wires of suitable proportions as to diameters and spacing thewarp wires in accordance with the relative diameters and the substance to be filtered.

Referring particularly to Fig. 6; of the drawings, it will be observed that the cloth resulting from this invention is substantially a double cloth with one intermediate layer of wires.

The warp wires 5 in this invention are straight-throughout their entire length and are not crimped or twisted as in weaves heretofore produced.

The weft wires numbered 1, 2, 3 and 4 respectively are preferably arranged in a re-, curring series offour. wires toa series. Two of each series of weft wires. are arranged on one side'of the warp wire and two on the other side. The weft wires of the same series and on the same side of the warp wire are adjacent. Each weft wire is arranged to rest on the same side of two consecutive warp wires, then crosses between The weft wires are started so that 1 and 3 I are opposite each other as shown in Fig. 4:.

Weft wires 2 and 4 are also started opposite each other so that l and 4. and 2 and 3 are adjacent. The weft wire 4 which is The crimping of the weft wires as shown permits the maximum number of wires to be arranged on either side of the warp wires for any given length of cloth and produces substantially a double weave.

The substance which passes through the cloth 'is constrained to take a circuitous path by reason of thearrangernent of the weft wires. The path of the substance is similar to the line 9 shown in Fig. 6.

A." cloth made in accordance with the invention showmand described, when held to the light and viewed at right angles, will not permit any light to be seen, but if the cloth is tilted to an angle, sr'nall regularly ar- -i rangedopenings are readily discernible.

Having described my invention 1 claim new, and desire to secure by Letters Patent: 1. A woven fabric consisting of uncriniped warp wires, and a recurring series of weft wires which overlap to produce a double surface.

2. A woven fabric consisting of uncri np'ed warp wires, and a recurring series of weft Wires, part of which series are arranged d1? ternately above and below the warp wires and beaten closely together.

3. A woven fabric consisting of uncriinped warp wires, and a recurring series of weft wires arranged on each side of said warp wires so that each weft wire; overlaps the next preceding weft both above and below said warp. wires.

4. A woven f bric consisting of a recurring" series of four weft wires which overlap to form a double surfaced filtering n1e-.

diurn.

5. A woven fabric consisting of un'crimped warpwires, and a.- recurring series of four overlapping weft wires, so that two weft wires are arranged. above. and two below the warp wires to form a double surface.

6. A woven'fabric consisting of uncrimped Warp wires, and a recurring series of overlapping weft wires arranged so that each weft wire will be alternately on the same side of the cloth for a distance of two warp wires, thereby permitting each weft wire to overlap the preceding weft wire.

7. A woven fabric consisting of warp Wires, and a series of overlapping weft wires which are crimped in the nature of a helix and in the direction of the warp wires.

8. Awoven'fabric consisting; of uncrimped Leas es warp wires, and overlapping weft wires crimped in the direction of the warp wires.

9. A woven fabricconsisting of uncrimped warp wires, and a series of weft wires progressively interlaced between and overlapping said warp wires.

10. A woven fabric consisting of warp wires, and a series of overlapping weft wires, said weft wires so arranged that the warp wires may be readily withdrawn.

11. A woven fabric consisting of uncrimped warp wires, and a series of'four overlapping weft wires arranged so that only two weft wires cross between two succeeding warp wires. I

12. A woven fabric consisting of warp wires, a weft wire arranged on one side of two warp wires, then passing in a helical direction to the other side of the two succeeding warp wires, a second weft wire arranged on the opposite side of said first mentioned weft wire, and two eft W res arranged between said first and second men- .tioned weft wires, all ,weft-wires being crirnped helically.

Q13. A woven fabric consisting 'of uncr1mped warp wires, a weft wire arrangedon one side of two warp wires then passing;

to the other side of two succeedingwarp wires, a second. weft wire arranged on the opposite side of said first mentioned weft wire and other weft wires overlapping and" interlaced between the warp wires spanned ,by and overlapping said first and second mentioned weft wires, each of said weft wires crimped in the direction of thewarp wires.

c'rimp'ed warp wires, and a recurring series of weft wire arranged oneach side of said warp wires, said weft wires crimped heli-' wires.

16. A woven fabric consisting of uncrin ped warp wires, a doubleplayer of ad joining; weft wires, each overlapping the preceding weft wire over and under said warp wires.

17. A woven fabric consisting of un crimped warp wires, a doublelayerof adjoining weft wires, and an intermediate layer of weft wires.

18. A woven fabric consisting of warp wires. and overlapping weft wires, said warp wires being-larger in diameter, than the weft WlIGS, so that the weft wires will crimp helically in the direction of the Warp Wires without the pressure of said weft wires crimping the warp wires.

Kid. A woven fabric consisting; of an Wires, the mm below bemg the $82318 per Einezzl im -crimped Warp wires 1 A. woven ing medium of doable s1. above and one ring; Weft WiIQS so arranged race one surface said uncrimgjzed warp 2.- of Weffr, wims maxi A Woven fam'iQ sonsmti of 1mcrimped Warp wires and a re 'zurung series of weft wires, so that the fabric has: n don-- Me filtering surface 011? above and one 10W said Warp Wires.

21. A woven fabric consisting "up: and a recurring rim; 0f overlapping weft wires forminga double surfaced filter cloth, one snrfu nlun'e and one below said Warp wires, so :11 :mgzcd that there is a full im-h of dizurzewz' of :u fiacent' weft Wires placed closely (an. both sides of the fabric, thgreb 1.111;: a fabric- 02 ids-116x21; s than the fabais is Imid to the iigiit fiCaZ position if is npzzqxw, but, when *frmn :1 Vi'iliiilzil mvsi'iion in the direc 1? warp E es and. a? M angle of :Lll Wedge shaped apertures are seen 1 muse the filtrate flmi is globular in 1 m emngui'i-x and pass t'iu'mlgh the wedge shaped apertm' lowing a precipinze m1 eii'hu; surface 01'. the 210th and regumieti by i119 firmness of H10, mosh.

Sign d this 25m day of May 1917.

CA M PB ELL. 

